Valve-head for blowing-engines



(No Model.)

0. L. MOORE. VALVE HEAD FOR BLOWING ENGINES.

Patented Sept. 3, 1889.

WITNESSES: C "IVE/I705: flaw/57%;;

@ JAM ATTORNEYS.

UNITED STATES PATENT OFFICE.

CALVIN LUTHER MOORE, OF LEBANON, PENNSYLVANIA.

VALVE-HEAD FOR BLOWING-ENGINES.

SPECIFICATION forming part of Letters Patent No. 410,372, dated September 3, 1889. Application filed October 15, 1888. Serial No. 288,102. (No model.)

To aZZ whom it may concern:

Be it known that I, CALVIN LUTHER MOORE, of Lebanon, in the county of Lebanon and State of Pennsylvania, have invented a new and Improved Valve-Head for Blowing-Em gines, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved valve-head for blowingengines, which is very simple and durable in construction and effective in operation, being capable of receiving and discharging a great quantity of air at each stroke, and permitting an easier replacing of a worn-out valve without taking off the usual hand-hole plate or disturbing the other parts of the engine.

Theinvention consists of avalve-head comprising a casing having in its exterior rim inlet-valves, a disoharge-boxheld on the inside of the casing, and discharge-valves located in the box opposite the said inlet-valve.

The invention also consists of certain parts and details and combinations of the same, as will be fully described hereinafter, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in both the figures.

Figure 1 is a sectional plan view of the improvement on the line a w of Fig. 2, and Fig. 2 is a sectional side elevation of the same on the line y y of Fig. 1.

The improved valvehead A is provided with a casing B, having the exterior annular rim O secured by one end to the end of the cylinder of the blowing-engine. On the rim 0 is formed the usual bottom C, through which passes the piston-rod in the usual manner. In the rim C are held a desirable number of inlet-valves I), and directly behind, in the inside of the casing 13, are held the discharge-valves E, located in a rim F of the annular discharge-box G, mounted on theinside of the casing B, and connected in the usual manner with the discharge-pipe leading from the engine to the furnace or other place.

Each valve D is provided with a valve seat II, fitted into a corresponding aperture in the rim C, and on the inside of each valveseat H is held a valve I, adapted to open inward and provided with the rods J, extending outward, being guided in a bridge K, fastened to the exterior of the valve-seat H. On each of the rods J screws a nut J, on the under side of which presses the free end of a spring L, secured to the outside flange of the valve-seat II. This spring L holds the valve I on its seat H, at the same time permitting an inward opening of the said valve.

Each dischargevalve E is provided with a valve-seat N, fitted into a corresponding aperture in the rim F of the discharge-box G. On the inside of each valve-seat N is held a valve 0, adapted to open inward, and secured on a pin P, extending outward through the center of the valve I, passing through a hub 1, formed on the outside of the said valve I, and then the said rod or 'pin P passes through the bridge K, in which it is guided. The nut P is held on the rod P, and against the under side of the nut operates the free end of a spring L, also secured on a seat H in the same manner as the springsLabove referred to. The spring L holds the valve 0 on its seat N, and at the same time permits an inward opening of the said valve 0.

The operation is as follows: \Vhen the piston in the cylinder to which the valve-head is secured moves in the direction of the arrow a, then the valve I opens inward and air from the outside passes into the cylinder. When the pistontravels in the inverse direction of the arrow a,the valve I is held on its seat by its springs L and by the pressure of the air inside of the cylinder. The valve 0, however, opens inward by the force of the said air pushed in front of the piston,whereby the air from the cylinder passes through the valve-seat N into the discharge-box G, and from the latter is conducted in the usual manner to the desired point. It will be seen that if the valves D and E are worn out and need replacing the operator can remove the valve-seat H from the outside, thus forming a convenient opening in the rim O,which permits him to get at the valve E, located directly behind the said opening. The valveseat N and the valve 0 can then be removed through the said opening formed in the rim 0, and replaced by new ones, if necessary.

Having thus described my invention,whatI claim as new, and desire to secure by Letters Patent, is-

1. In a valve-head for blowing-engines, the combination, with the casing B and the discharge-box G, of the inlet-valve I, provided with the rods J, the discharge-valve 0, provided with the rod P, the bridge K, through which the rods J and P project, and the springs L L, engaging the said rods, substantially as described.

2. In a valve-head for blowing-engines, the

combination,wit-h the casing 13, the dischargebox G, and the valve-seats H N, fitted in the rims of the said casing and box respectively, of the inlet-valve I, provided with hub I and the rods J, having nuts J the dischargevalve 0, provided with the rod P, having nut P, the bridge K, secured to the valve-seat H, and the springs L L, engaging the rodsJand P, substantially as herein shown and described.

CALVIN LUTHER MOORE. Witnesses:

AUG, P. ALLWEIN, HARRY A. REINOEHL. 

